Endre Boros, Khaled M. Elbassioni, Vladimir Gurvich, Kazuhisa Makino, Vladimir Oudalov. Sufficient conditions for the existence of Nash equilibria in bimatrix games in terms of forbidden \(2 \times 2\) subgames. Int. J. Game Theory, 45(4):1111-1131, 2016. [doi]
Abstract is missing.